Ex.A bibliographic data base comprises a set of records which refer to documents (such as books, films, periodical articles or reports).

Ex.The authors of this work have had experience behind both reference desks and classroom lecterns and have felt strongly the lack of an adequate text on the training and education of the reference librarian.

Ex: A bibliographic data base comprises a set of records which refer to documents (such as books, films, periodical articles or reports).

Ex: The authors of this work have had experience behind both reference desks and classroom lecterns and have felt strongly the lack of an adequate text on the training and education of the reference librarian.